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package org.dusin.teachassist.servlet.student;

import java.io.IOException;
import java.io.PrintWriter;
import java.util.List;
import java.util.Map;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import org.dusin.teachassist.entity.MyConstant;
import org.dusin.teachassistdbservice.serviceimpl.GeneralService;
import org.dusin.teachassistdbservice.util.JsonUtil;
import org.dusin.teachassist.util.TheUtil;
import org.springframework.context.ApplicationContext;
import org.springframework.web.context.support.WebApplicationContextUtils;

/**
 * 
 * @author dusin
 */
@WebServlet(name = "CourseJobs", urlPatterns = {"/servlet/student/CourseJobs"})
public class CourseJobs extends HttpServlet {
    private GeneralService instance;
    /**
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code>
     * methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/json;charset=UTF-8");
        PrintWriter out = response.getWriter();
        try {
            ApplicationContext context = WebApplicationContextUtils.getWebApplicationContext(getServletContext());
            instance = (GeneralService) context.getBean("generalService");
            HttpSession session = request.getSession();
            int teachClassId = (Integer)session.getAttribute("teachclassid");
            String studentNo = (String)session.getAttribute("studentNo");
            List<Map<String,Object>> jobs =instance.findAllCourseJobs4Student(teachClassId, studentNo); 
            //进行数据处理
            for(Map<String,Object> j:jobs){
                
                Integer submittedCount =(Integer) j.get("count");
                if(submittedCount==null){
                    submittedCount = 0;
                }
                j.put("count", submittedCount);
                Integer jobStatus = (Integer)j.get("jstatus");
                Object scoreStatus =(Integer) j.get("sstatus");
                
                if(scoreStatus==null){
                    scoreStatus = 0;
                }
                if(jobStatus == MyConstant.JOB_LOCKED){ //截止提交
                    j.put("snote", "已截止"); 
                    j.put("score", 0);   //成绩没有发布，在不将成绩发送到客户端，所有设置为0；
                }else if(jobStatus == MyConstant.JOB_PUBLISHED){//如果已发布,sstatus为成绩
                    Integer score = (Integer)j.get("score");
                    scoreStatus = TheUtil.getGrade(score);                    
                }else{
                    j.put("score", 0);   //成绩没有发布，在不将成绩发送到客户端，所有设置为0；
                    j.remove("snote"); //成绩没发布，也不能看评语
                }
                    
                j.put("sstatus", scoreStatus);
            }
            String result = JsonUtil.toDatagrid(jobs);
            out.print(result);
        } catch(Exception e){
            e.printStackTrace();
        }finally {
            out.close();
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>

}
